[SystemZ][z/OS] Open text files in text mode (#109972)

This patch continues the work that was started here
https://reviews.llvm.org/D99426 to correctly open text files in text
mode.

Author: abhina-sree

clang/lib/Driver/OffloadBundler.cpp

@@ -1192,7 +1192,7 @@ Error OffloadBundler::ListBundleIDsInFile(
     StringRef InputFileName, const OffloadBundlerConfig &BundlerConfig) {
   // Open Input file.
   ErrorOr<std::unique_ptr<MemoryBuffer>> CodeOrErr =
-      MemoryBuffer::getFileOrSTDIN(InputFileName);
+      MemoryBuffer::getFileOrSTDIN(InputFileName, /*IsText=*/true);
   if (std::error_code EC = CodeOrErr.getError())
     return createFileError(InputFileName, EC);
 
@@ -1324,7 +1324,7 @@ Error OffloadBundler::BundleFiles() {
   InputBuffers.reserve(BundlerConfig.InputFileNames.size());
   for (auto &I : BundlerConfig.InputFileNames) {
     ErrorOr<std::unique_ptr<MemoryBuffer>> CodeOrErr =
-        MemoryBuffer::getFileOrSTDIN(I);
+        MemoryBuffer::getFileOrSTDIN(I, /*IsText=*/true);
     if (std::error_code EC = CodeOrErr.getError())
       return createFileError(I, EC);
     InputBuffers.emplace_back(std::move(*CodeOrErr));
@@ -1392,7 +1392,8 @@ Error OffloadBundler::BundleFiles() {
 Error OffloadBundler::UnbundleFiles() {
   // Open Input file.
   ErrorOr<std::unique_ptr<MemoryBuffer>> CodeOrErr =
-      MemoryBuffer::getFileOrSTDIN(BundlerConfig.InputFileNames.front());
+      MemoryBuffer::getFileOrSTDIN(BundlerConfig.InputFileNames.front(),
+                                   /*IsText=*/true);
   if (std::error_code EC = CodeOrErr.getError())
     return createFileError(BundlerConfig.InputFileNames.front(), EC);
 

llvm/tools/llvm-link/llvm-link.cpp

@@ -330,8 +330,8 @@ static bool importFunctions(const char *argv0, Module &DestModule) {
 
   auto ModuleLoader = [&DestModule](const char *argv0,
                                     const std::string &Identifier) {
-    std::unique_ptr<MemoryBuffer> Buffer =
-        ExitOnErr(errorOrToExpected(MemoryBuffer::getFileOrSTDIN(Identifier)));
+    std::unique_ptr<MemoryBuffer> Buffer = ExitOnErr(errorOrToExpected(
+        MemoryBuffer::getFileOrSTDIN(Identifier, /*IsText=*/true)));
     return loadFile(argv0, std::move(Buffer), DestModule.getContext(), false);
   };
 
@@ -402,7 +402,7 @@ static bool linkFiles(const char *argv0, LLVMContext &Context, Linker &L,
   // Similar to some flags, internalization doesn't apply to the first file.
   bool InternalizeLinkedSymbols = false;
   for (const auto &File : Files) {
-    auto BufferOrErr = MemoryBuffer::getFileOrSTDIN(File);
+    auto BufferOrErr = MemoryBuffer::getFileOrSTDIN(File, /*IsText=*/true);
 
     // When we encounter a missing file, make sure we expose its name.
     if (auto EC = BufferOrErr.getError())

llvm/tools/llvm-objdump/SourcePrinter.cpp

@@ -344,7 +344,8 @@ bool SourcePrinter::cacheSource(const DILineInfo &LineInfo) {
   if (LineInfo.Source) {
     Buffer = MemoryBuffer::getMemBuffer(*LineInfo.Source);
   } else {
-    auto BufferOrError = MemoryBuffer::getFile(LineInfo.FileName);
+    auto BufferOrError =
+        MemoryBuffer::getFile(LineInfo.FileName, /*IsText=*/true);
     if (!BufferOrError) {
       if (MissingSources.insert(LineInfo.FileName).second)
         reportWarning("failed to find source " + LineInfo.FileName,

llvm/tools/llvm-rc/llvm-rc.cpp

@@ -603,7 +603,7 @@ void doRc(std::string Src, std::string Dest, RcOptions &Opts,
 
   // Read and tokenize the input file.
   ErrorOr<std::unique_ptr<MemoryBuffer>> File =
-      MemoryBuffer::getFile(PreprocessedFile);
+      MemoryBuffer::getFile(PreprocessedFile, /*IsText=*/true);
   if (!File) {
     fatalError("Error opening file '" + Twine(PreprocessedFile) +
                "': " + File.getError().message());
@@ -682,7 +682,7 @@ void doCvtres(std::string Src, std::string Dest, std::string TargetTriple) {
   object::WindowsResourceParser Parser;
 
   ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
-      MemoryBuffer::getFile(Src);
+      MemoryBuffer::getFile(Src, /*IsText=*/true);
   if (!BufferOrErr)
     fatalError("Error opening file '" + Twine(Src) +
                "': " + BufferOrErr.getError().message());

llvm/tools/llvm-readtapi/llvm-readtapi.cpp

@@ -125,7 +125,7 @@ static std::unique_ptr<InterfaceFile>
 getInterfaceFile(const StringRef Filename, bool ResetBanner = true) {
   ExitOnErr.setBanner(TOOLNAME + ": error: '" + Filename.str() + "' ");
   ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
-      MemoryBuffer::getFile(Filename);
+      MemoryBuffer::getFile(Filename, /*IsText=*/true);
   if (BufferOrErr.getError())
     ExitOnErr(errorCodeToError(BufferOrErr.getError()));
   auto Buffer = std::move(*BufferOrErr);

llvm/tools/llvm-strings/llvm-strings.cpp

@@ -173,7 +173,7 @@ int main(int argc, char **argv) {
 
   for (const auto &File : InputFileNames) {
     ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer =
-        MemoryBuffer::getFileOrSTDIN(File);
+        MemoryBuffer::getFileOrSTDIN(File, /*IsText=*/true);
     if (std::error_code EC = Buffer.getError())
       errs() << File << ": " << EC.message() << '\n';
     else

llvm/utils/split-file/split-file.cpp

@@ -123,7 +123,7 @@ static int handle(MemoryBuffer &inputBuf, StringRef input) {
     if (ec)
       fatal(input, ec.message());
     auto f = std::make_unique<ToolOutputFile>(partPath.str(), ec,
-                                              llvm::sys::fs::OF_None);
+                                              llvm::sys::fs::OF_Text);
     if (!f)
       fatal(input, ec.message());
 
@@ -156,7 +156,7 @@ int main(int argc, const char **argv) {
   if (output.empty())
     fatal("", "output directory is not specified");
   ErrorOr<std::unique_ptr<MemoryBuffer>> bufferOrErr =
-      MemoryBuffer::getFileOrSTDIN(input);
+      MemoryBuffer::getFileOrSTDIN(input, /*IsText=*/true);
   if (std::error_code ec = bufferOrErr.getError())
     fatal(input, ec.message());